/*
 * Copyright (c) 2010, Albertas Vyšniauskas
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *     * Neither the name of the software author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef UPDATE_H_
#define UPDATE_H_

class Update;
class PollingUpdate;

#include "layout/Widget.h"
#include "Instance.h"
#include "RootWindow.h"

#include <stdint.h>
#include <stdbool.h>
#include <memory>

using namespace layout;
using namespace std;

class Update{
protected:
	Instance *instance;
	RootWindow *root_window;
public:
	Update(Instance *instance);
	virtual ~Update();

	virtual bool ready(uint32_t now);
	virtual void update(uint32_t now);
	virtual uint32_t getSleepTime(uint32_t now);

	void setRootWindow(RootWindow *root_window);
	RootWindow* getRootWindow() const;
};

class PollingUpdate:public Update{
protected:
	uint32_t update_interval;
	uint32_t last_update;
public:
	PollingUpdate(Instance *instance, uint32_t update_interval, uint32_t now);
	virtual ~PollingUpdate();
	
	virtual bool ready(uint32_t now);
	virtual void update(uint32_t now);
	virtual uint32_t getSleepTime(uint32_t now); 
};

#endif /* UPDATE_H_ */
